Anchoring insert for concrete structures



Sept. 25 1923. 1,469,198

E. M TowE;

ANGHORING INSERT FOR CONCRETE STRUCTURES Filed Feb. 1921 h] [11 E 4 IF 7 l 1 Z a z 7 5 5 Z w 4/ E 4 Z 4 3 $1 e M w Q INVENTOR I R -w ATTORNEYS Patented Sept. 25, 1923.

rr are EDWARD MCTOWE, on nocnns'rnn, nEw YORK.

ANCHORING INSERT FOR CONCRETE STRUCTURES.

Application filed February 8, 1921 Serial No. 443,445.

' State of New York, have invented certain new and useful Improvements in Anchoring Inserts for Concrete Structures, of which the following is a specification. j

The present invention relates to anchoring inserts for concrete structures and an ob ject of the invention is to provide an insert with an elongated opening with seats on opposite sides of the opening for engagement with a headed device, the headed device being adjustable in the opening longitudinally of the latter, provision being made whereby the walls of the opening may be readily engaged with nails or projections on a mold wail, after such nails or projections have been driven in the mold wall. Another ob ject of the invention is to provide an anchoring insert having means for interlocking with pins projecting from a temporary mold wall by movement of the insert with ref erence to the pins in the wall, provision being made whereby the insert may be interlocked with the mold wall independently of the pins to prevent shifting of the insert with reference to the wall after the pins have been interlocked with the insert.

To these and other ends the invention consists of certain parts and combinations of parts, all of which will be hereinafter described, the novel features being pointed out in the, appended claims.

In the drawings:

Fig. 1 is a view of the exposed face of the insert;

Fig. 2 shows the insert in a cement struc ture, the insert being partially in section and having a bolt anchored thereto;

Fig. 3 is a longitudinal sectional view through the insert positioned over two nails and ready for engagement with the latter:

Fig. 4; is a view similar to Fig. 3 showing the manner in which the insert is turned with reference to the nails before the latter are caused to enter the looking or retaining notches; V

Fig. 5 is a part end view and part vertical sectional view showing the insert in a cement structure before the retaining wall is removed; and

Fig. 6 is a fragmentary sectional view showing the manner, in which the anchoring bolt is attached to the insert.

In the building of concrete structures such as ceilings or fioorings, it is customary 7 to provide inserts in which bolts and other devices are anchored for sustaining piping, shafting or ;other articles or apparatus. These inserts are usually nailed to the wooden wall which is builtto forrn-the concrete structure. The concrete is then poured about the insert and permitted to harden, and thereafter the wooden mold wall is removed as the nails are secured to the insert. The removal of the wall leaves the nails projecting from the concrete structure and it is then necessary to cut off the projecting ends of the nails. This consumes considerable time and labor.

A 'device for overcoming the foregoin objections is shown in patent granted tome on November 16, 1920, #1359290, in which the nails are secured to the mold wall and thereafter theanchoring inserts are engaged with the nailspreferably through interlocking with such nails, this interlocking being such that when the mold wall is removed from the concrete structure the :nails. will be disconnected from the insertso that the labor of clipping the nails is eliminated. In said patent, however, the headed device engages with a slotted plate detachably connected with the insert, whereas in the present invention the opening in the insert is so formed that it may be utilized to permit the adjustment of the headed device therein,

-while the walls thereof also serve for inter which the concrete abuts. The insert is, in

this instance, a cast metallic'hody 4 of hollow formation having an opening 5 in one wall thereof. This opening, in this instance is elongated and has its longitudinal sides converging. The sides of the body flare from said wall in which the opening 5 is pro- 110 vided so that the body will be suitably auohored in the concrete structure 1. The coin j the projections '7 and 7 into the mold wall. After the structure is built up about the verging side walls of the opening 5 are provided between their ends with notches or recesses 6. In attaching the insert to the headed pro ections 3 the lnsert 1s first fitted over-the headed projections in the manner illustrated in Fig, 3 and isthen turned to bring the headed projections or nails toward the widest end of the opening 5.

Thereafter, the insert is moved longitudinally so as to exert pressure on opposite sides ofthe two'nails to place them under a side tension, so that by the tlme the notches or recesses 6 are reached, the nails spring into such notches or recesses and hold the insert.

against accidental displacement It is also desirable to provide further means for securing each insert to the mold wall-2 and ,to this end the wall of the insert which is provided with the opening 5, may also he provided with projections 7 and 7 which, in

this instance, are integral with the insert,-

lhese propections are designed for entering the mold wall 2 after 'the insert hasbeen properly positioned 'with reference to the nails 8, this result being secured by giving the insert a blow with the hammer to drive insert, the mold wall is removed and' the nalls 3 readlly detach themselves from the insert with the removal otthe mold wall so that it is unnecessary to perform the opera 1 tion of clipping the nails from theinsert as has been the practice heretofore.

In ordertoprovide for attaching a headed bolt 8 or other device to the anchoring insert, one wall of the opening 5 is provided 7 insert on opposite sides of the opening-6.

This-construction while facilitating the passmg of the head of the bolt through the opening 5, at the same time prevents the bolt from the insert.

from becoming accidentally disconnected Aiter the bolt head has passed above the seats 12, it is moved'longitudinallyof the slot from the notch 9,

asshown in Fig. 2 of the drawings. The insert interlocks with the headed projections in such a way that accidental displacement of the insert is prevented, yet it is possible to remove the nails from the insert when the mold wall is taken down. The insert is also provided with pins or projections adapted to be driven into the mold wall to further pre-- vent the accidental displacement of the insertzon the mold wall. The insert has an opening through which a bolt or other headed device may be readily inserted, this pening being so formed that it prevents the accidental passage of the head of the bolt through the opening.

What I claim as my invention and desire to secure by Letters Patent is:

1. An anchoring insert comprising a 7 body ha *ing an elongated opening formed with converging walls for producing a. lateral pressure on two spaced'projections' extending through said opening when the body is moved relatively to said projections, said walls being provided with notches into which said projections may spring after such movement 1" the body is completed and the inner face of the bottom wall on opposite sides of the elongated opening providing seats for headed devices, combined with a headed device adjustable in the opening in thedirection 01" the length of the latter and having its head engaging the'seats in any adjusted position.

2. An anchoring insert comprising a hollow body having flaring sides, and an elongated opening in its bottom wall, the inner face of the bottom wall on opposite sides of the elongated pening providing seats for a headed device, and the walls of the opening converging to provide a lateral pressure on two spaced projections extending through said opening when the body is moved re'latively to the projections combined with a headed device adjustable in the opening in the direction of the length of the latter and having its head engaging the seats in any adjusted position.

3. An anchoring insert comprising a body having an opening in its bottom wall, the

ails of the opening having provision to produce a lateral pressure on two spaced pins extending through the opening when the body is moved relatively to the pins, and having means for interlocking with the pins after such movement, and a projection carried by the bottom face of the insert adapted to be driven into a wall from which the pins project after the insert has been interlocked with the pins. f

l. An anchoring insert comprising a body having an opening in one Wall, the inner face of said wall having a seat fora bolt head about said opening, one, wall of the opening having a notch, and the body wall I in which the opening is provided having a groove intersecting the notch to receive the stem of a headed device as the head of the" device is inserted sidewise in the opening in order to engage with the internal seat.

EDWARD Mc'lOWE.

Certificate of Correction.

It is hereby certified that in Letters Patent No. 1,469,198, granted September 25, 1923, for an improvement in Anchoring Inserts for Concrete Structures, the name of the patentee is erroneously written and printed as Edward Mo-Towe, Whereas said name should have been written and printed as Edward M0 Towe; and that the said Letters Patent should be read With this correction therein that the same ma conform to the record of the case in the Patent Office.

Signe and sealed this 23d day of October, A. D., 1923.

[SEAL] WM, A. KINNAN,

Acting Gammz'ssz'oner of Patents. 

